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Finding the Fourth Proportional to 8,331.61, 12,497.42 and 4,866.49

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Solution

The fourth proportional to 8,331.61, 12,497.42 and 4,866.49 is: 7,299.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.61 : 12,497.42 = 4,866.49 : x
  2. Step 2: Convert to fraction form
    8,331.61/12,497.42 = 4,866.49/x
  3. Step 3: Cross multiply
    8,331.61x = 12,497.42 × 4,866.49
  4. Step 4: Simplify right side
    8,331.61x = 60,818,569.46
  5. Step 5: Solve for x
    x = 60,818,569.46/8,331.61
  6. Step 6: Final answer
    x = 7,299.74

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.